All products sold by our company comply with relevant national technical standards or industry standards.
They strictly pass the ISO Quality Management System certification, and we provide relevant product technical documentation (installation instructions, product packing list, Chinese
user manual, certificate of conformity, etc.).

Provide product installation, commissioning, and technical support services according to the contract requirements signed with customers. Our company can arrange technical engineers
to provide full-process services until the system is put into operation. During the product operation period, if there are any questions, our company will respond within 4 hours. For technical
problems that customers cannot solve, our company will arrange for technical engineers to arrive at the site within 24 hours according to the actual situation.
Training services: We can provide technical training services for product maintenance and operation personnel. Customers shall confirm the personnel participating in the training and inform
us in advance, and we will formulate a targeted training plan.

After the product is installed and running normally, our company will provide the Product User Manual and other relevant instructions to help customers become familiar with product
usage and operation.

1. Within the warranty period: During the quality warranty period specified in the contract, for equipment and engineering quality issues found during unpacking inspection, installation and
commissioning, and equipment trial operation, we provide free repair, replacement, and return services until the product meets quality requirements.
2. Outside the warranty period: Our company provides lifetime technical support services. If product components are damaged, we will provide spare parts at reasonable prices. If customers
need product improvement or capacity expansion, our company will provide the equipment and technical services required for upgrading at preferential prices.

365-day round-the-clock telephone technical support.

Grid has been committed to R&D in the power electronics industry for 7 years, with a strong technical R&D team and a complete after-sales service system. We uphold the philosophy of
"technology leadership, teamwork, first-class service, and customer satisfaction." We provide customers with technical support and training services to help them use products quickly and
correctly and to promptly handle product failures. At the same time, we gather various issues, suggestions, and requirements encountered in after-sales service into our product knowledge
base and product requirement database, continuously improving our service efficiency and product design to provide customers with high-quality products and services.

If you are dissatisfied with our products or services or have better suggestions, you can file complaints or suggestions with the after-sales service manager or sales staff.